Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 60,
  • Issue 1,
  • pp. 39-47
  • (2006)

Preliminary Evaluation of Micro-Raman Spectrometry for the Characterization of Individual Aerosol Particles

Not Accessible

Your library or personal account may give you access

Abstract

Raman spectrometry has been used to determine the graphitic C content and to estimate particle size and disordered character of the C in aerosol particulate matter collected on filters, with sample spot sizes on the order of 100 μm being analyzed. Individual analysis of particulate matter with aerodynamic diameters less than 10 μm has therefore not been considered. In this investigation, various size fractions of aerosol particulate matter originating from both indoor and outdoor sources were collected by means of impactors or passive dry deposition on different types of substrate and analyzed by means of micro-Raman spectrometry with spot sizes ranging from 1–5 μm. The aim was to investigate the possible application of micro-Raman spectrometry to the molecular characterization of individual aerosol particles and to assess the applicability of the various substrates in such an analysis. It was demonstrated that the molecular characterization of most inorganic particles is trivial, but organic and heterogeneous conglomerates proved to be more challenging. Spectral contributions of the substrates, currently favored for individual particle analysis, were significant. Results obtained from micro Raman spectrometry can certainly add valuable molecular information on individual aerosol particles as small as 1 μm aerodynamic diameter.

PDF Article
More Like This
Classification and selective collection of individual aerosol particles using laser-induced fluorescence

Vasanthi Sivaprakasam, Timothy Pletcher, John E. Tucker, Alan L. Huston, Joseph McGinn, David Keller, and Jay D. Eversole
Appl. Opt. 48(4) B126-B136 (2009)

Particle size evaluations using multiwavelength extinction measurements

Edward E. Uthe
Appl. Opt. 21(3) 454-459 (1982)

Detection and characterization of chemical aerosol using laser-trapping single-particle Raman spectroscopy

Aimable Kalume, Leonid A. Beresnev, Joshua Santarpia, and Yong-Le Pan
Appl. Opt. 56(23) 6577-6582 (2017)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved